780 thousand people. By the end of 2022, the total population of shitai county was 780,000, and that of shitai county was 800,000 in 20021year, 20,000 less than that of shitai county in 20021year, of which 52% were men and 48% were women. The reasons for the decrease of shitai county's total population are: natural environment and geographical environment. Shitai county is located in China's high latitudes, with long and cold winters, short and hot summers and harsh climatic conditions, which leads to the migration and flow of shitai county population to the warmer south. The factors of economic and social development also have a certain gap with other places in education, medical care and culture, which affects people's retention and return.